ARLEN NESS Big Sucker 1 Cover - Twin Cam 18-321 AX9 Helmet Peak — Antarctica providing an average performance increase

providing an average performance increase of 2cv and reduced weight

The first step in the exhaust system tuning process

no need to create a harness from scratch

Molded Marathon foam

Titanium sprocket nuts have engraving on top with logo and torque settings

ARLEN NESS Big Sucker 1 Cover - Twin Cam 18-321 AX9 Helmet Peak — Antarctica providing an average performance increaseFeatures a one piece aluminum backing plate carb support bracket with patented hidden breather technology and radius air inlet Breather passages exit at the mouth of the carburetor throttle body, creating a virtually closed loop system Kit includes high performance filter, backing plate and steel outer cover All necessary hardware and instructions are included with each kit